The availability of powerful microprocessors and high-speed networks as commodity components has enabled high-performance computing on distributedsystems (wide-area cluster computing). In this environment, as the res...
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This paper presents our hybrid architectural model for distributed data mining (DDM), which is tailored to meet the needs of e-businesses in which application service providers sell DDM services to e-commerce users an...
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This paper presents our hybrid architectural model for distributed data mining (DDM), which is tailored to meet the needs of e-businesses in which application service providers sell DDM services to e-commerce users and systems. The hybrid architecture integrates the client-server and the mobile agent technologies. This model focuses on the optimisation and costing issues of DDM, which are particularly relevant in the context of billing users for data mining services.
SCAF is a Simple Component Architecture Framework built upon OMG CORBA. Components are the core modelling concept. Components describe their relationship with other components by means of interface provision and requi...
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SCAF is a Simple Component Architecture Framework built upon OMG CORBA. Components are the core modelling concept. Components describe their relationship with other components by means of interface provision and requirement descriptions. These interfaces are the connectors that configure the distributed application. SCAF supports dynamic composition and encapsulation of components and has a simple matching specification for retrieval of reusable components. It has been implemented in Python on top, of an ORB (Object Request Broker) called Fnorb.
The availability of powerful microprocessors and high-speed networks as commodity components has enabled high-performance computing on distributedsystems (wide-area cluster computing). In this environment, as the res...
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The availability of powerful microprocessors and high-speed networks as commodity components has enabled high-performance computing on distributedsystems (wide-area cluster computing). In this environment, as the resources are usually distributed geographically at various levels (department, enterprise or worldwide), there is a great challenge in integrating, coordinating and presenting them as a single resource to the user, thus forming a computational grid. Another challenge comes from the distributed ownership of resources, with each resource having its own access policy, cost and mechanism. The proposed Nimrod/G grid-enabled resource management and scheduling system builds on our earlier work on Nimrod (D. Abramson et al., 1994, 1995, 1997, 2000) and follows a modular and component-based architecture enabling extensibility, portability, ease of development, and interoperability of independently developed components. It uses the GUSTO (GlobUS TOolkit) services and can be easily extended to operate with any other emerging grid middleware services. It focuses on the management and scheduling of computations over dynamic resources scattered geographically across the Internet at department, enterprise or global levels, with particular emphasis on developing scheduling schemes based on the concept of computational economy for a real testbed, namely the Globus testbed (GUSTO).
This paper examines the role of parametric modeling as an application for the global computing grid, and explores some heuristics which make it possible to specific soft real time deadlines for larger computational ex...
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This paper examines the role of parametric modeling as an application for the global computing grid, and explores some heuristics which make it possible to specific soft real time deadlines for larger computational experiments. We demonstrate the scheme with a case study utilizing the Globus toolkit running on the GUSTO testbed.
In this article we present a new object-oriented design of a trader customized to the CORBA environment as a CORBA Service. Key design decisions include the separation of trader, service types, and service offers, the...
Networking homes, offices, cars and hand-held computers is the current trend of distributed mobile computing. The ever growing demand of the enterprise for integrating new technologies and new services requires a gene...
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Networking homes, offices, cars and hand-held computers is the current trend of distributed mobile computing. The ever growing demand of the enterprise for integrating new technologies and new services requires a generic infrastructure. An infrastructure that allows its components to be accessed, packaged, self described, dynamically configurable, moved over wired or wireless network, deployed either in a workstation or a mobile device from anywhere at anytime. An infrastructure that can be used with new alternatives to current human-machine interfaces applicable in diverse environment.
We present an algebra for programming the itineraries of mobile agents. The algebra contains operators for modelling sequential, parallel, nondeterministic, and conditional mobility behaviour. Iterative behaviour is a...
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We present a software framework that facilitates the development of adaptive applications. This framework allows the installation of application-dependent policies which govern the adaptive behaviour of the applicatio...
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We present a software framework that facilitates the development of adaptive applications. This framework allows the installation of application-dependent policies which govern the adaptive behaviour of the application. These policies take into account user preferences and resource availability. The framework provides a generic interface to a variety of re-usable resource classes. We describe an application built using this framework.
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